GOG has a couple of sales on now. One is a pick 5 games, with some pretty decent prices. Has the option to choose random games for $2 each. From the reddit thread, these are some of the more common games they're likely to offer:

The HD Collections aren't complete collections, just so you know. The Vita version is only 2 re-mastered games, and I believe the old MSX versions of Metal Gear and Metal Gear 2. PS3 version also has re-mastered Peace Walker, which was originally on PSP.

They don't include, for example, the original Metal Gear Solid from PS1. It is available on PSN, but it would be the regular $10. Doesn't seem like it's playable on Vita. Apparently that recent compatibility update may have been an error, and many games have reverted to being incompatible with Vita.

Big Humble Store spring sale going on. Includes flash sales that only last a few hours. I think Hotline Miami already came and went at 75% off, for example (still 50% off). TowerFall Ascension ends at 5PM EDT, and Arkham Origins at 9PM EDT.

Big Humble Store spring sale going on. Includes flash sales that only last a few hours. I think Hotline Miami already came and went at 75% off, for example (still 50% off). TowerFall Ascension ends at 5PM EDT, and Arkham Origins at 9PM EDT.

Yeah. They had 400 copies of Papers, Please at $4 (lowest I've seen it) go in under 2 minutes. Then 300 of Shadowrun Returns at $5 (matching the lowest) went in something like 62 seconds. If you want to participate in this, you kind of have to be sitting at your computer, with the store page in another window to the side.

EB/Gamestop Canada has a bit of a sale going. I didn't see anything real fantastic. Beyond: Two Souls is $20, which is the lowest I've seen it. Though Amazon.com and .ca have it for $30, and so does BestBuy.com. So maybe it's got a bit of a price drop coming.

The GameDeals subreddit is decent, though they tend to have a pretty heavy tilt towards Steam and PC games. Since reddit is effectively a popularity contest, legitimate deals that get downvoted can be hidden off the front page when using default settings. And longer-term deals will eventually move off the front page, and can't be bumped or anything.

Target Canada has some pretty good deals on mostly Nintendo stuff. $100 for a blue 3DS XL. $150 for a Nintendo Land Wii U Deluxe. $20 for a WiiMote Plus, or $25 for Wii Party U, which includes a remote. Wind Waker HD for $25. Various other stuff too. Trials Fusion Xbone, and Ryse for $20 caught my eye. Forza 5 was $20 or $30.